Bird-Strike Damage Analysis and Preliminary Design of Composite Radome Structure Using Smoothed Particle Hydrodynamics
Source abstract
Abstract
The bird-strike is the main reason that could lead to the severe damages to the aircraft and the cost. In addition, aviation certification authorities have to prove the integrity of bird strike. The verification method for bird-strike is not by the test to evaluate at the early design phase but, by the analytical method. In this paper, birds were idealized as fluid to evaluate the analytical assessment and the SPH method and effect analysis research were applied using commercial analyzing instrument, Abaqus. The SPH method has an advantage of reducing element deformation and analyzing time much more than the previous ALE or Lagrangian methods. In order to verify the bird-strike analysis, the structures with rigid body structures having infinite stiffness were analyzed and the effectiveness of bird-strike applied the SPH method confirmed by comparison of the analysis value with experiment value. In addition, as for the airworthiness requirements on modified aircraft, the maximum speed of aircraft was 8000 lbs., assuming the flight path was the same as birds, and conducted analysis of the bird-strike on the radome and the structure supporting the radome based on the additional installation of satellite antenna on the existing aircraft in order to verify the design ensuring the continuous safe flight and landing of the aircraft once striking with 4 lbs. of birds, as a result, it was confirmed that the structural stability of antenna structures and radome after modification was secured based on the analysis result of SPH method on the bird-strike. This analysis on the bird-strike can present the optimum design for the radome prior to the mock-up test and it allows to reduce the cost and time of the development.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Fluid Dynamics Simulations and Interactions · High-Velocity Impact and Material Behavior · Dynamics and Control of Mechanical Systems
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (24)
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